. >>> it was a busy day for fire crews in campbell. a fire was so intention crews had to take a defensive stance by starting at the top of the building. >> looks like the back half of the building is burned completely. the roof is gone, all of the property inside is gone too. it looked like it was a manufacturing, maybe battery electric type vehicle type of operation. >> the business in the front of the building a solar company suffered mainly smoke damage. >>> crews responded to a hotel fire alarm on the seventh floor of the courtyard mariott in campbell. it was about 2:00 a.m. and some of of the hotel guests said they were still asleep. >> emergency, get up, throw your clothes on and get out of the room and get downstairs and see what's going on. >> reporter: the hotel staff briefly evacuateed the fifth, sixth and seventh floors. the áfp fire officials tell us they believe a sprinkler either malfunctioned or was tampered with. >>> a man who lured firefighters to their deaths yesterday left a note about his planned act. 62-year-old e